Home / 28,358.69-42,514.79-11,730.65

Finding the Fourth Proportional to 28,358.69, 42,514.79 and 11,730.65

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Solution

The fourth proportional to 28,358.69, 42,514.79 and 11,730.65 is: 17,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.69 : 42,514.79 = 11,730.65 : x
  2. Step 2: Convert to fraction form
    28,358.69/42,514.79 = 11,730.65/x
  3. Step 3: Cross multiply
    28,358.69x = 42,514.79 × 11,730.65
  4. Step 4: Simplify right side
    28,358.69x = 498,725,850.09
  5. Step 5: Solve for x
    x = 498,725,850.09/28,358.69
  6. Step 6: Final answer
    x = 17,586.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.